Merge branch 'md-next' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md...

Merge branch 'md-next' of https://git./linux/kernel/git/song/md into for-5.20/drivers-post

Pull MD fixes from Song:

"The major change is:

"1. Fix potential deadlock with raid5_quiesce and
    raid5_get_active_stripe, by Logan Gunthorpe."

* 'md-next' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md:
  drivers:md:fix a potential use-after-free bug
  md/raid5: Ensure batch_last is released before sleeping for quiesce
  md/raid5: Move stripe_request_ctx up
  md/raid5: Drop unnecessary call to r5c_check_stripe_cache_usage()
  md/raid5: Make is_inactive_blocked() helper
  md/raid5: Refactor raid5_get_active_stripe()